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arXiv 1601.04024hep-ph
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Schwinger-Dyson方法及其在产生轻复合标量中的应用

Schwinger-Dyson approach and its application to generate a light composite scalar

A. Doff, A. A. Natale

摘要:

我们讨论了产生一个轻复合标量玻色子的可能性,在一个场景中,我们可以一般称为Technicolor,或在任何变化的强相互作用理论,其中光,我们的意思是一个标量复合质量约一个数量级以下的特征尺度的强理论。代替大多数基于有效拉格朗日量的关于复合希格斯玻色子的研究,我们在费米子Schwinger-Dyson和Bethe-Salpeter方程的非微扰解的框架下考虑这个问题。我们研究了近年来提出的一系列形成这种轻复合玻色子的机制,并验证了这种可能性似乎必然与费米自能有关,该自能随动量缓慢下降。

英文摘要:

We discuss the possibility of generating a light composite scalar boson, in a scenario that we may generically call Technicolor, or in any variation of a strongly interacting theory, where by light we mean a scalar composite mass about one order of magnitude below the characteristic scale of the strong theory. Instead of most of the studies about a composite Higgs boson, which are based on effective Lagrangians, we consider this problem in the framework of non-perturbative solutions of the fermionic Schwinger-Dyson and Bethe-Salpeter equations. We study a range of mechanisms proposed during the recent years to form such light composite boson, and verify that such possibility seems to be necessarily associated to a fermionic self-energy that decreases slowly with the momentum.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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